Accessory for robot toy



FIG. 1 is a front elevational view of the accessory for robot toy, the rear elevational view (not provided) being identical thereto;

FIG. 2 is a left-side elevational view thereof, the right-side elevational view (not provided) being identical thereto;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a front, right-side, top perspective view thereof;

FIG. 6 is a cross-sectional view taken along line 6-6 in FIG. 3; and

FIG. 7 is a reference view showing the accessory for robot toy in use.

The broken lines depict environmental subject matter, and thus form no part of the claimed design. 

CLAIM The ornamental design for an accessory for robot toy, as shown and described. 